How to Work Abroad Legally: 5 Models, 5 Visa Types (Vietnam Edition)

This is part of a 30-day honest content series about digital nomad life and working abroad. Yesterday I covered free travel through Work Exchange. Today: the bigger question — what are the actual legal ways to work while traveling?

Let me be direct: most content about working abroad is dangerously incomplete. People talk about "earning money overseas" without explaining which visa you need, what the conditions are, or where the legal risks are.

The result? Many people buy a plane ticket only to discover they're not allowed to work. Best case: a fine. Worst case: deportation and a multi-year ban.

This article breaks down 5 actual models, each with its own visa type, conditions, and legal limitations. By the end, you'll know exactly where to start.

Disclaimer: This information is based on general immigration rules. Laws vary by country and change frequently. Always check the official government or embassy website of your destination before making decisions. This is not legal advice.

Quick Comparison: 5 Legal Models

Read this table first for an overview. I'll go deep into each model below.

Model	Visa Required	Income Source	Best For	Barrier	Duration
1. Work Exchange	Tourist visa	None — skill exchange only	Beginners, testing the waters	Lowest	3–12 months
2. Working Holiday Visa	WHV (bilateral agreement)	Legal employment allowed	18–30 years old (some to 35)	Medium	6–12 months (renewable)
3. Remote Work Visa	Digital Nomad Visa	Foreign income	Stable remote job	Medium	6–24 months
4. Freelance Remote	Tourist visa (usually)	Foreign clients	Freelancers with digital skills	Low–Medium	Short 1–3 months/trip
5. System Income	Most flexible	Products, content, SaaS	Proven stable income	Highest	6–24 months

Model 1: Work Exchange — Skill Exchange for Accommodation

I covered this in detail yesterday. Quick recap:

• Visa: Standard tourist visa. NO work permit needed.
• How it works: You volunteer 4-5 hours/day for a host (farm, hostel, family...) in exchange for free accommodation and meals.
• Legal status: Since no money changes hands — only skills for accommodation + meals — it's legal in most countries.
• Key limitation: Never accept cash. The moment you receive payment from a local business, you need a work permit.

Best for: Beginners who want to test the experience before committing long-term. Any age.

Popular platforms: WorkAway, WWOOF, Helpx.

Model 2: Working Holiday Visa (WHV) — Legal Paid Work

This is the least known model — and the biggest surprise for many people.

What is WHV?

Working Holiday Visa is a bilateral agreement between two countries. Country A allows citizens of Country B (and vice versa) aged 18-30 to work and travel for a specific period.

The key difference from Work Exchange: you can earn a real salary, following local labor laws.

Which Countries Have WHV Agreements with Vietnam?

Many people don't know this, but Vietnam has signed WHV agreements with:

• Australia: Working Holiday Visa subclass 417/462 — can extend up to 3 years with farm work
• New Zealand: Working Holiday Visa — similar to Australia, good for agriculture and hospitality
• Ireland: Working Holiday Authorization — popular for English learners who want to work
• Germany: Working Holiday Visa — lesser known but a gateway to the EU market
• South Korea: Working Holiday Visa — more competitive, requires basic Korean

Note: Check the embassy website of your destination country to confirm current requirements, as they may change.

Common Requirements

• Age: 18–30 (some countries up to 35)
• Single or no dependents
• Proof of sufficient funds (typically AUD 5,000+ or equivalent, around $3,300 USD)
• Clean criminal record
• Adequate health insurance

Important Limitations

You can usually work only one type of job for a maximum of 6 months per employer. The primary purpose of the visa is still "holiday" — work is secondary to cover expenses.

Best for: People aged 18-30 who want real work experience abroad. Especially good for earning money to cover living costs.

Model 3: Remote Work Visa / Digital Nomad Visa

This is the newest visa type, emerging widely since 2020. Over 50 countries now offer some version of this.

How It Works

You maintain your job or income from abroad (employer or clients not in the destination country), and you're legally allowed to reside there during the visa period.

Popular Countries Offering This Visa

• Portugal: Digital Nomad Visa — most popular, 1-2 years, requires minimum income ~EUR 3,040/month (~$3,300 USD)
• Georgia: Remotely from Georgia — easiest to get, minimum income $2,000/month
• Thailand: Long-Term Resident Visa (LTR) — higher requirements but stable
• Indonesia (Bali): Digital Nomad Visa — developing
• Barbados, Costa Rica, Croatia: Varies by country, expanding

Income Requirements

Varies by country, typically $2,000–$4,000 USD/month. You must prove income comes from outside the destination country.

Tax Warning

Staying in one country for an extended period (usually over 183 days) may create tax residency obligations there. Consult a tax advisor before applying. This is a detail many people overlook.

Best for: Remote employees or freelancers with stable foreign income. People who want to stay longer than 90 days legally.

Model 4: Freelance Remote — The Most Common Gray Area

I need to be honest about this part, because this is how millions of digital nomads actually operate — but it's not legally clear everywhere.

How It Works

You enter the destination country on a standard tourist visa (NOT a work visa), work remotely for clients in other countries (not the destination country), and receive payment via PayPal, Wise, or bank transfer.

Legal Status

Technically: You're not working "in" the destination country — you're not taking money from local companies, not using a local work permit.

In practice: Risk is very low if you don't work for companies in the destination country, don't declare income there, and don't overstay your visa.

But in theory: It's not 100% clear in every country. Some countries may consider this illegal work.

Honest Recommendation

• If staying under 90 days: this is how most nomads operate, risk is low.
• If staying longer than 90 days: consider applying for a proper Digital Nomad Visa to avoid legal risks.
• Never work for a local company on a tourist visa — this is the clear line between legal and illegal.

Best for: Freelancers who already have a client network. People who want to "test" before applying for a proper Digital Nomad Visa.

Model 5: Building Income Systems — The Highest Level

This is the model I'm building toward, and it's also the most free but takes the longest to build.

The Concept

Income comes from systems you own: blog, YouTube, ebooks, SaaS, digital products, B2B services — not dependent on a specific employer or client.

Real Example

My Hung OK Ecosystem includes:

• 3H Decor / Tap2Stay: B2B contracts for hotels and resorts
• Lemon Squeezy store: Selling digital products (ebooks, templates, checklists)
• 5bien.com: Content platform generating traffic-based income
• O-VN: SaaS tools (shortlink, biolink, email marketing)

Advantages

• Most flexible visa situation: Since you don't work for anyone specific, it's easier to apply for any suitable visa (tourist, remote work, digital nomad).
• Location-independent: Income isn't limited by borders.

Challenges

• Takes time to build: Usually 1-3 years to reach stable income.
• Unstable at first: Income fluctuates heavily in the early stages.
• Requires multiple skills: Content, marketing, tech, sales — or you need to hire people.

Best for: Patient people building long-term. This is the endpoint, not the starting point.

Which Model Should You Start With?

Here's a simple decision tree to help you figure it out:

If you...	→ Start with
Are 18–30 years old and want real experience	Working Holiday Visa — apply first, find work after arriving
Already have stable remote income ($2-4K/month)	Digital Nomad Visa — apply for proper visa, stay long-term legally
Have nothing yet, want to test first	Work Exchange — experience 3-6 months, lowest cost
Are already a freelancer with foreign clients	Freelance Remote — be careful, under 90 days, or get proper visa
Want complete freedom, willing to invest long-term	Build income systems — takes 1-3 years but most free

Three Questions Before You Apply for Any Visa

Before you apply for any visa, answer these three questions:

1. Do you want short-term experience or long-term stay? → Determines visa type
2. Do you already have remote income? → Determines if you can get a Digital Nomad Visa
3. Are you in the WHV age range (18-30)? → Determines if you can apply for Working Holiday

Your answers will determine which model you should use. Choose the right way — before buying your plane ticket.

Coming Tomorrow: Warning About Scams

Tomorrow, I'll cover the dark side of going abroad: fake programs, phantom jobs, and labor traps that cost people thousands of dollars.

If today's article helped you understand the legal options, tomorrow's article will help you avoid losing money to overpromises.

Subscribe to the newsletter so you don't miss it — link in the about section.

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This article is part of a 30-day honest content series about digital nomad life and working abroad by Oliver (Hung OK). No affiliate links, no brokerage, no overpromises. Just practical information so you can decide for yourself.

Read more:

• Day 5: 3 Digital Nomad Models Explained
• Complete WorkAway Guide
• About Oliver & Hung OK Ecosystem